Machinery foil malflifactubing hingjes



UNITED sTATEs PATENT oEErcE.

G. H. HoRToN AND L. ARMSTRONG,oE'HARTEoRi); ooNNEoTIcUT.

`1v1ACHINEEYFOR'ivLANUFAoTtrarne HINGES. i

Specification of Letters Patent No; 5,293, dated September 11i, 1847.

To aIZZ whom, f may camera .f

Be it known that we, GEORGE H. HoRToN and LEANDER ARMSTRONG, ofHartford, in

the county of Hartford and State of Connecticut, have invented anew anduseful machine for making butts or hinges of wrought-iron, sheet-brass,or other metal capable of being bent into the proper shape or form; andwe do hereby declare that the same is fully described and representedlin the following specification and'accompanying drawings, letters,figures, and references thereof.

Of said drawings Figure 1 denotes a top View of said machine-Fig. 2 is aside elevation of it. Fig. 3 is an elevation of `the end opposite tothat at which the power to drive the machine is applied. Fig. 4 isacentral longitudinal and vertical section of it. Fig. 5I is a verticaland transverse section taken through the dies, to be hereinafterdescribed. Such other figures as may be necessary to a full descriptionand representation' of the operative parts will be duly specified.

The metal to be converted into hinges is Y first stamped or cut out, inthe shapes denoted in Figs. 6 and 7-that is to say with one or moretongues a, a, a, and corresponding spaces b, b, ZJ, the portions c, c,const-ituting the leaves of the butt, while from the said parts a, a,the joint of the hinge Ais made, their parts being brought together (insuch manner that they enter, and fit or fill the spaces b, b, 1),) andbent around a piece of Wire or pin which serves to connect them Ytogether, and complete the joint of the hinge.

A in the figures denotes the frame werk of our machine. It may be madeof the shape exhibited in the drawings or in any other proper manner. Y

B is the main driving shaft carrying a fly wheel C. It has a coggedpinion D fixed ori' it, which engages with two toothed gears `F, F, thelower one F of which is placed on the end of the main cam shaft G, whilethe former or upper one, is fixed on theeccentric shaft I-I. There aretwo of said eccentri@ shafts viz H and I, are arranged in the positionsas seen'in Figs. l, 2 and 3; The latter (I) receives its motion'rthrough a toothed gear K fixed on it, and made to engage with the gearF, before mentioned.

The mechanism which we shall now proceed to describe,l consists of theimpelling slides, the main or j oint'die, the turning dies the antispreading plates, the wire severer or Vimpelling slides are composedoftwo straight rectangular and flat pieces of'meta-l or steel L M, -eachof which is` att-ached toone of ,twol adjusting-and sliding carriages N,l(i). The said slides L Mrest and move toward and away from one another,on flat beds P, Q, and are guided in their movements beli-V tween andbyl two parallel pieces of metal R, S, which compose the sides ofreceiving chambers T, U, betweenwhich the main or joint die V isarranged as seenin Fig. 5 and in Fig. 8, which is an enlargedl view ofthat part of Fig. 5, which exhibits the said die,

yand the impelling slides, and parts immedi'f rlhe impellingk slides aredriven passingv around one of the said eccentrics while the rod Z isjointed to thek carriage 0 the impelling slide, which plays betweenguides. s v

The main4 or joint die V consists 'of a block of steel, having a' grooved cut across it transversely, which groove in its cross section is asegment of a circle, somewhat greater than a'semici'rcle, as seen inthel drawings.l The diameter of the said seg= ment corresponds to lthediameter of the joint of the hinge when completed. The said die, shouldbe made perfectly stationary, or be held firmly in position. The lowersurface of it is'pla'ced on' a level with fthe upper surfaces L, M.

Betweenthe two beds P, Q, theturning die f, is arranged. Its object isto slightly bend or curve upwardthe ends of the proof the two impellingslides U j jting Parts' @a 0f the plates from Which the hinge is to bemade, when their extreme ends pass also to remain in kthe position,while the joint is being madein the main die.- vThe one another,V

said turning dies elevate the ends of the 7 projections a, a, a, so thatthey will meet the sides of the groove of the' die V,V`and when forcedforward, by the impelling i slides", be compelled to bend around in saidgroove into the shape required. ".Ihefposi-` tion of the `said turningwith respect to; the main die, and impelling slides, when the operationof bending is @being performed, is

exihibited in Fig. 8,l wherein the central part" a (Fig. 7 is denoted(by redlines) as bent upward by the turning die, and in the act ofentering the main'y die V. F ig.,9.is aside view'of the said turningdie.v Fig. 10 a top view of it, and Fig. 11 an end elevation of it. Itconsists 'of a slide or bar having three inclined planes g, ZL, i, uponits ltop, two off whichg, z', run 1n one direction while the third vormiddle one (Zz.) runs in an opposite direction. The said slide or die isoperated` or elevated byv a cam le xed on the cam shaft G. It isdepressed by a lever n, and

spring 0, the slide being jointed to the lever.`

The anti spreading plates, consist of'two` sliding plates Z, m, arrangedwith respect to the block V, as seen in the cross section Fig. 4. Avertical and longitudinal section of the plate Z, 'and the side bar R,is exhibited' in Fig. 12. A similar section of the other i of the bar istoprevent the plates of which the hinge is composed, from spreadinglaterally, when thejoint is being made. The purpose of lowering theslide Z is to depress it below an opening 1" made through the bar R, R,for the discharging slide S to pass oif or sever the wire at the hinge.

through, when put Jin action so Vas to discharge the hinge from thedies, after it is made. The other slide m, not only is operated like thefirst one (Z) and answers a like purpose, but is also intended to cut orseparate the piece of wire, inserted between the two parts of the hinge,from the remainder of the feeding wire. For this purpose the slide m,has a hole t, bored through it, of a size just sufficient to receive thewire u, Fig. l, andallow it to be passed through it. Soon after thehinge has been formed'on the wire, a projection lozon the cam o raisesthe slide m up, in such manner as to break By means of aspring zu, andlever y, the slide m, is afterward? retracted or drawn downward,

far enough to allow the hingeto be driven' (by the slide S) through anopening w made through `the side bar S; the Vslide m ,being A while theother is made on the end of a lever f which moves horizontally on thefulcrum g', and is borne toward a cam wheel Zt', by a spring i. Thesaidcam wheel is fixed on of a side s, which is arranged'as seen inthethe .eccentric shaft I, andhas a camlson it,

which should beso arranged, and made as at theproper time', (while thesaid wheel ZL', fisbeing revolved) to press against the lever Af,andthrow or. cause the carriage to move 7 forward towardthe" dies.

Theretreat of the carriage.. is effected by a spring Z, vproperlyappliedlto it, and the platform c. There is ajpair of nippers m', n',fixed on the platform c', vin rear of the carriage, as seen in the?drawings. One of these nippers is fastened'to the platform, .Whilevtheother is made movableon av fulcrum 0, the jaws of the said nippers,being kept'together, or pressed `toward one'another, by a spring"4p,`properly applied'toA the tail' of the nipper m', and to theplatform.` The feeding wire n.' after passing through a guidev post giscarried between the jaws ofthe nippers 1n/n, and from thence, betweenthe jaws ZZ and e, the hole t of the slide m, and through the centralormiddle part of the die of the block V. This being done, whenever thecarriage retreats, the nippers m, n', willso grip the wire, as to 9 holdit firmly and still, while the carriage moves back. The jaws CZ', e,will then slide over the wire. But when the carriage advances toward thedies'the jaws ci', e, will be caused (by the cam'k which acts againstthe lever f) to grasp the wire so firmly, as to draw it through the jawsof the nippers m', n, and cause it to advance into the Lmain die V. Y j

The hinge discharging apparatus, consists 1 drawings, and thrown forwardat the proper time, by a cam 7" placed on the top o f a vertical shafts, revolved by two beveled gears t, u, the former of which is fixed onthe shaft s', and the latter on the cam shaft G. The 'retraction of theslide is effected by a bent lever fv, which turns on a fulcrum fw, andhas one arm,y placed in a notch m made on the slide. The other arm ofthe lever is struck by the cam r, during its revolution, and so as tocause the lever to turn on its fulcrumin such manner as to force backthe slide s. Soon after the hinge has been formed in the dies, thedischarging 1 slide is moved forward against-it, and so as toexpel ittherefrom. j In operating the machine one portion of the hinge (viz thatshown in Fig.` 7 .isA placed in the chamber T, while 'the other, or 1that exhibited in Fig. 6, is laid in the chamber V. This being done, themachinery should be put in operation, so as to cause the impellingslides, to advance toward one another, and by so doing to crowd the two1 plates of the hinge together or. make them advance `with them. Theturning die f should next be elevated, and in seasonfto cause the endsofthe parts a, a, a, of the V plates, to `meet the inclined planes ofit, and 1 by them be turned upward, into the segmental groove, of thedie V. The feeding apparatus should in the mean time advance the wireinto the space d of the die V. The impelling slides should continuetheir advance in such manner as to cause the parts a, a, a, of theplates to interlock, and pass around the wire, which they will be causedto do by being forced into the die V. In the mean time theanti-spreading plates Z, m, should rise up,-so as to prevent any lateralspreading of the metal, and soon after the hinge has been made one ofthem, viz, m, should rise upward and cut off the wire on the hinge fromthat without it. This being done the two plates should descend farenough to admit of the expulsion of the hinge from the dies by the slides as before specified. We use over each chamber T or U a suitablehopper, made so as to contain a vertical pile of hinge plates, the lowerone of which will be removed from the pile at each advance of theimpelling slide through the chamber. The impelling slide should retreatentirely out of the chamber or beyond the hopper, so as to allow thepile of hinge plates, to fall and rest on the bed, over which theimpelling slide passes. l/Vhile the slide is forcing any plate forwardtoward the bending dies, the plate at the bottom of the pile, or thatone which was directly over the one so forced forward, will rest on thetop of the impelling slide.

vVe wish it distinctly understood that we do not intend to confine ourinvention to the precise forms, and arrangements of mechanism as abovedetailed,but we mean to vary the same to any desirable extent, while wedo not change the combination or principles we consider' new and as ourimprovements.

lVe do not claim the invention of the die V, in combination with oneimpelling slide and chamber, to receive the half of the hinge, as we areaware that such has been used before, for the purpose of making a halfhinge, for bending it into a proper shape for a joint, but

That which we do claim as our invention, 1s-

l. The combination of the die V, two impelling slides (L, M,) andchambers T, U, and the turning die f, 'the whole being arranged and madeto operate together substantially as above described.

2. We also claim the wire feeding apparatus, in its combination with thedies, or machinery for making the hinge joint, and as arranged, andoperating therewith-substantially as herein before explained..

3. We also claim the slide s or hinge discharging apparatus, ascombined'with the dies, or apparatus for making the joint of the hinge,and operating therewith as specilied.

4L. And in combination with the said dies, or apparatus for bending theparts a, a, a, of the joint of the hinge, we claim the slides Z, m, (bywhich lateral extension of the metal is prevented,) the same being madeto operate therewith substantially as specified.

5. We also claim7 the combination of the cutting slide (-or part whichsevers the wire) with the bending apparatus, the same' being actuated,and arrangedv as described.

In testimony whereof we have hereto set our signatures this 29th day ofMarch, A. D.

GEORGE H. HORTON. LEANDER ARMSTRONG. Witnesses:

ISAAC C. PERKINS, HENRY PERKINS.

